Hey Leonel, thanks for your reply but the above code is still saving empty
(0byte) images
On Friday, March 17, 2023 at 5:22:07 PM UTC+2 Leonel Câmara wrote:
> What's happening here is that your validator is reading the file and it's
> not "rewinding" it afterwards so when the next step gets it the file
> descriptor is at the end of the file hence the ' bytes size.
>
> I would recommend rewriting it to something like this (the important part
> being the value.file.seek(0)) note that I haven't tested this code at all.
>
> import pytesseract
> from PIL import Image
> from pydal.validators import Validator, ValidationError
>
> class IMG_HAS_TEXT(Validator):
>
> def __init__(self, check_tokens=None, error_message="Image doesn't
> have the required text"):
> self.error_message = error_message
> self.check_tokens = check_tokens or []
>
> def validate(self, value, record_id=None):
> try:
> image = Image.open(value.file)
> value.file.seek(0)
> text = pytesseract.image_to_string(image).lower()
> if not text or not all(token in text for token in
> self.check_tokens):
> raise ValidationError(self.translator(self.error_message))
> return value
> except:
> raise ValidationError(self.translator(self.error_message))
>
> class IS_RECEIPT_OR_INVOICE(IMG_HAS_TEXT):
>
> def __init__(self, error_message="The uploaded file is not a receipt
> or invoice!"):
> self.error_message = error_message
> self.check_tokens = ("receipt", "invoice")
>
>
> A terça-feira, 14 de março de 2023 à(s) 20:55:11 UTC, mostwanted escreveu:
>
>> I have a little problem with my validator code, its saving 0 byte images
>> and I just don't know why, the value variable is an image that actually
>> contains an image, I have tested it several times to see what it contains
>> and its an image but for some reason when it comes to saving it in the
>> database it saves an empty image, please assist me where I could be going
>> wrong. Regards
>>
>> from gluon import *
>> import pytesseract
>> from PIL import Image
>>
>> class IS_RECEIPT_OR_INVOICE(object):
>> def __init__(self, error_message="The uploaded file is not a receipt
>> or invoice!"):
>> self.error_message = error_message
>>
>> def __call__(self, value):
>> error = None
>> try:
>> image = Image.open(value.file)
>> text = pytesseract.image_to_string(image)
>> if "receipt" not in text.lower() and "invoice" not in
>> text.lower() and "RECEIPT" not in text and "INVOICE" not in text:
>> error = self.error_message
>> except:
>> error = self.error_message
>> return (value, error)
>
>
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